Improvement in the mode of preventing the explosion of lamps



E. How-ARD.

Lamp. No. 70,721. Pa'med Nov. 12, 1867.

/A/Vf/V TOKX.

W7@ WJ 17W.

MFETERS, FHOT@LITIIOGRAPNERl WASHINGTON D C i ,butter @time Mettete-m- EDWARD How-ARD, oF 'REDHILL', ENGLAND. i Letters Patent No. 70,721, dated November 12,1867.

IMPROVEMENT IN THE 4MODE OF PREVENTING THE EXPLOSION OPLAMPS.

@In rlgehule referrer tu in tiges rtttts @that :nu making part .of tigt tunis.

TO ALL WHOM I'l MAY CONOERN: l v i Be it known that I, EDWARD HOWARD, a member' of the Royal College of Physicians, of Londomof Redhill, in the county of Surrey, England, have invented u new and improved Mode of Preventing the Explosion of Lamps used for consuming parntlne, camphine, b'elmon'tine` rock oil, crystul oil, or any other combustible carbonaceous oils or spirits; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawing, und to the letters of reference vmarked thereon.

e The nature of my invention consists in preventing the explosion of lamps used for burning any of the aforesaid materials by absolutely preventing communication between the Hume cf the wick and the upper part of the chamber containing the oil or spirit to be consumed. i i A To enable others skilled in the art to make and use my invention, Iwill proeeedto describe its construction and operation. i

I construct my lamp in :my ofthe forms in which lpareiline lamps are commonly made. I then 'add a tube, i

A, made of tin or other insoluble material, of u size und shape to tit loosely over the wick, which I fit close to the under surface of the cup B. This tube A must be long enough to reuch down to within about one-quarter of an inch from the bottom of the vase. Through this tube the Wick passes into the vase. All communica-tion between the outside of the lamp and the inside is thus prevented, except through the tube A and a groove (to admitiuir) in the collar of the burner C. All other openings are closed, and aen explosion is impossible. v

What Il claim as my invention, und desire to secureby Letters Patent, isl The application of the long tube A, before named, and the substitution for the usual openings of aJ groove in the collar of the vase C, so that by no opening can the Haine of the lump reach the gas in the vase.

EDWARD HOWARD. Witnesses:

E. M. FOSTER, Redhill, Surrey. E. S. LAMBERT, Redhill. Surrey. 

